MicroNet Template Engineers go Results Found: 4 Button group with nested dropdown Summit Structural Engineering Summit Structural Engineering 310 S. 26th St., Ste. 1 Spearfish SD 57783 (605) 639-1790 Interstate Engineering, Inc. Interstate Engineering, Inc. 120 Industrial Dr., Ste. 2 Spearfish SD 57783-0226 (605) 642-4772 HDR Engineering, Inc. HDR Engineering, Inc. 703 Main St., Ste. 200 Rapid City SD 57701-2788 (605) 791-6100 FMG Engineering FMG Engineering 3700 Sturgis Rd. Rapid City SD 57702-0317 (605) 342-4105